This is a bit and not a regular weblog entry
The Google Chart API returns a PNG-format image in response to a URL. Several types of image can be generated: line, bar, and pie charts for example. For each image type you can specify attributes such as size, colors, and labels. You can include a Chart API image in a webpage by embedding a URL within an
tag. When the webpage is displayed in a browser the Chart API renders the image within the page.
Pretty damn spiffy.